hii ,
i have implemented ppp over serial using gsm modem sim900d. and it works
fine.device gets ip address properly.
but when I replaced GSM modem with sim5216j ,ppp not able to established
connection with sim5216j.
i am using same code and hardware which used for sim900d implementation.
so i
Hello Michael,
On Wed, Apr 01, 2015 at 08:47:03AM +0200, Michael Waeber wrote:
Hi all
I try to integrate PPP with a GPRS modem in our system. lwIP works well
for ethernet in our system since 3 years. Since PPP is currently
actively developed I've upgraded from 1.4.1 to current Master
Looking at your frames, the SIM900 outputs a PPP frame with HDLC address
and control bytes, while the SIM5216 does not.
I'm by no means a PPP expert, but just looking for PPP in wikipedia
shows this:
/The Address and Control fields always have the value hex FF (for all
stations) and hex 03 (for
Hello,
On Wed, Apr 01, 2015 at 03:18:02AM -0700, rohanm wrote:
hii ,
i have implemented ppp over serial using gsm modem sim900d. and it works
fine.device gets ip address properly.
but when I replaced GSM modem with sim5216j ,ppp not able to established
connection with sim5216j.
i am
Hi all
I try to integrate PPP with a GPRS modem in our system. lwIP works well
for ethernet in our system since 3 years. Since PPP is currently
actively developed I've upgraded from 1.4.1 to current Master
(16.03.2015).
The modem is connected to GPRS, then the PPP session is started. The
thank you for ur quick response.
pfa. LOG_2.log http://lwip.100.n7.nabble.com/file/n24269/LOG_2.log
this is what i got in the log.
sorry for messy log.
--
View this message in context:
On 4/1/2015 2:47 AM, Michael Waeber wrote:
Hi all
I try to integrate PPP with a GPRS modem in our system. lwIP works well
for ethernet in our system since 3 years. Since PPP is currently
actively developed I've upgraded from 1.4.1 to current Master
(16.03.2015).
The modem is connected to GPRS,
Hello Sylvain
On 01.04.2015 14:02, Sylvain Rochet wrote:
snip ..
That's a perfect IPCP request ;-)
After this frame the communication is dead, no answer received, no other
frame sent.
I've tried using various combinations of
- No auth, PAP, Chap
- With/without VJ header compression
Hello Michael,
On Wed, Apr 01, 2015 at 05:27:41PM +0200, Michael Waeber wrote:
On 01.04.2015 14:02, Sylvain Rochet wrote:
Looks like your lwIP timeouts are not working or you don't have enough
of them, PPP needs a lot of timeouts, could you check that first ?
What do you exactly mean
Hello Michael,
On Wed, Apr 01, 2015 at 09:56:37PM +0200, Sylvain Rochet wrote:
It really should retry a few seconds later, could you dig what is
happening in IPCP (ipcp.c/fsm.c) ?
What do you have for FSM_DEFTIMEOUT in lwipopts.h/opt.h ?
To be sure I tested with an input drop filter
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